However, they also have a great number of differences. The first thing you need to do when sorting out squirrel poop vs. rat poop is pull up a droppings identification guide on the internet. The gestation period in squirrels can be between 30 days (California ground squirrel) or 44 days (Eastern grey squirrel). The main difference i can see is that the baby squirrels hind leg thigh appears to be longer in proportion than that of the baby rat. They are, after all, both closely related rodents but there are visible differences between the black or Norway rat (our most common rat) and the house mouse, regardless of their size. Squirrel poop is larger than rat poop, and youâll find their droppings scattered about the home. ), but if you are able to look closely, you will see distinct differences between rats and miceâas well as between different species of each. You wonât feel guilty about tossing a âpoor, defenseless baby animalâ out of your home when you know that the âbabyâ is actually a fully-grown, adult mouse. Unfortunately, squirrel and rat droppings look pretty similar, but there are a few key differences to help you determine whether youâre dealing with squirrels or rats in walls. Also the tail appears to be longer in the squirrel in proportion to its body. They may seem as though they look a lot alike (especially if one is scurrying across your floor! The female on the left, the male on the right. The black spots are their belly buttons. The main difference between squirrel and mouse infestations is the time of day that they are active. 7-day-old baby rats. Itâs easy to tell their age based on visual clues found in pictures. You can see that they had just eaten and have full tummies (white patch). 7-day-old baby rats. At first glance, a young rat could be mistaken for an adult mouse. The most prevalent breed of squirrel in North America is the Eastern gray squirrel. Itâs the one you see running around the park in the spring. Rats are more sexually active compared to squirrels. The female on the left, the male on the right. A while back around 9:30pm or so, we heard a loud screeching noise that sounded like a rat or something outside and couldnt figure out where it was coming from. A mother squirrel can give birth to up to six babies twice a year. I thought these were baby squirrels when I first saw them but when I went online to look at baby squirrel pics and then came across baby rat pics I was confused. There are some definite distinctions between these two common house pests. The female on the left, the male on the right. The offspring of the Eastern grey squirrel take 15 months to reach sexual maturity. A. Squirrel and Rat Poop Identification. Rat: A rat has coarse fur that can be red, brown, gray, or black, depending on the species, while their underbellies are usually lighter in color (think white or pale yellow). Most people can spot the difference between a male and female baby rat by the third week because that is when the scrotum becomes more visible on males. Sometimes you can hear the sound of nuts rolling around. You can see physical differences in baby rats within the first couple of days following birth, if you know what to look for. APPEARANCE. In the case of the California ground squirrel, sexual maturity is reached at 12 months. Here are a few quick ways to tell the difference between a rat and a mouse. Figuring out what you are dealing with is extremely important since rats and squirrels are expelled from a house through very different processes. There isn't actually that much difference they can be both fairly hairless. 13-day-old baby rats. This process is known as whisking. 2-day-old baby rats. 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